Stamping-machine.



O. A. MYERS.

STAMPING MACHINE. APPLIOATION FILED MAY 6, 1911.

Patented Oct. 17,1911.

17 SHEETS-SHEET 1.

WITNESSES I ATTORNEYS 0. A. MYERS.

STAMPING MACHINE.

APPLICATION FILED MAY 6, 1911. 1,0Q6,1 17, Patented Oct. 17, 1911.

17 SHEETS-SHEET 2.

WITNESSES INVENTOR yawa ze/ ATTORNEYS COLUMBIA PLANOGRAPH tip-,WASHINOTON, D. c.

O. A. MYERS. v

STAMPING MACHINE.

APPLICATION FILED MAY 6, 1911. 1,006, 1 1 7. Patented 001. 17, 1911.

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WITNESSES I I INVENTOR BY [0mm ATTORNEYS 0.. A. MYERS. STAMPING MACHINE. APPLICATION FILED MAY 6, 1911.

Patented Oct. 17, 1911.

17 BHEETS-BHEET 4.

WITNESSES t INVENTOB fiawa W Anonuavs COLUMBIA PLANOHR APH COUWASHINOTON. D. C

17 SHEETS-SHEET 5.

Patented Oct. 1'7, 1911.

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0'. A. MYERS.

STAMPING MAOHINE.

APPLICATION FILED MAYS, 1911.

1,006,] Patented Oct. 17, 1911.

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STAMPING MACHINE.

- APPLICATION FILED MAY 6, 1911. 1,006,] 17, Patented 0011. 17, 1911.

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C. A. MYERS.

STAMPING MACHINE. APPLICATION FILED mus, 1911.

Patented Oct. 17, 1911.

17 SHEETSSHEET 8.

INVENTOR WITNESSES ATTORNEYS G. A. MYERS.

STAMPING MACHINE.

APPLICATION FILED MAY 6, 1911.

Patented Oct. 17, 1911.

17 SHEETS-SHEET 9.

INVENTOR ATTORNEY WITNESSES PLANobRM'H co.. WASHINGTON. I) c.

COLUMIHA G. A. MYERS.

STAMPING MACHINE.

APPLICATION FILED MAY 6, 1911.

1,006, 1 17, Patented Oct. 17, 1911.

17 SHEETS-SHEET 10.

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woman? COLUMBIA FLANOURAPH (IO-,WAshmu n. c.

G. A. MYERS.

STAMPING MACHINE.

APPLICATION FILED MAY 6, 1911.

1,006,1 17. Patented 0011.17,]911.

17 SHEETS-SHEET 11.

mu: ES 7 w INVENTOR 8 L96. ;$.//Q 1 [0mm MW COLUMBIA PLANO c,

G. A. MYERS.

STAMPING MACHINE. APPLICATION FILED MAY 6, 1911.

Patented Oct. 17,1911.

17- SKBETS-SHEBT 12.

WITNESSES ,Z? INVENTQR ATTORN C. A. MYERS.

STAMPING MACHINE.

APPLICATION FILED MAY 6, 191 1.

Patented Oct .17,'1911.

17 SHEETS-SHEET l3.

COLUMBIA PLANDORAPH CO-.WA5HINOTON. n. c

G. A. MYERS.

STAMPING MACHINE.

17 SHEETS-SHEET 14 mvamon ATTORNEYS Patented Oct. 17, 1911.

WITNESSES COLUMBIA PLANGORAPH c0, WASHINGTON. n. c.

G. A. MYERS.

STAMPING MACHINE.

APPLICATION FILED MAY 0, 1911.

1,00 ,117, r Patented 0ct.17,1911.

17 SHEETS-sHEET l5.

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STAMPING MACHINE.

APPLICATION FILED MAY 6, 1911.

Patnted 0C1}. 17,1911.

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STAMPING MACHINE.

Patented Oct. 17, 1911.

APPLIUATION FILED MAY 6, 1911.

17 BHBBTS*SHEET 17.

IIIBIII ATTU NITED STATES PATENT oFFioE.

CLARENCE A. MYERS, OF CAMDEN, NEW JERSEY.

STAMPING-MACHINE.

To all whom it may concern:

Be it known that I, CLARENCE. A. MYERS, a citizen of theUnited States, residing at Camden, county of Camden, State of New Jersey, have invented a new and useful Stamping-Machine, of which the following is a specification.

This invention relates to a stamping and punching machine and more particularly to a machine adapted to operate upon a sheet of material and stamp suitable punchings therefrom in a series of rows each of which is staggered with respect to the next adjacent row whereby the loss of material 1s reduced to a minimum.

It has for an object to provide a machine operating automatically to perform the stamping or punching operation and wherein a step by step movement of the material carrying mechanism takes place in a regular and predetermined sequence of operation and wherein the carrier feeding means is controlled automatically to eifect movement of the material in either direction and which reverses at both ends of the feeding stroke without the aid of the operator.

It has for a further object to provide a punching machine wherein a row of punches are stamped automatically after which the machine reverses and either returns to the starting point to stamp a second row of punches staggered with relation to the first or punches the second row on the return stroke.

It has for a still further object to provide a means for regulating and adjusting the distance between the punches and with which certain adjuncts cooperate to automatically determine the staggered relation of one row of punches to another. 1

It has for a still further object to provide a novel form of clutch mechanism whereby the forward feeding and reverse feeding movements of the material carrier may be automatically, accurately and positively controlled.

It has for a further object to provide a novel form of step by step mechanism wherein the feeding mechanism is temporarily disconnected from the material carrier during a stamping or punching operation and automatically becomes operative to continue the feeding as soon as the machine has stamped out a single punch.

For the purpose of illustrating my invention, I have shown in the accompanying Specification of Letters Patent.

Application filed May 6, 1911.

Patented Oct. 17, 1911.

Serial No. 625,542.

drawings one form thereof which is at pres entpreferred by me, since the same has been found in practice to give satisfactory and reliable results, although it is to be understood that the various instrumentalities of which my invention consists can be variously arranged and organized and that my invention is not limited to the precise arrangement and organization of these instrumentalities as herein shown and described.

Referring to the drawings, Figure 1 represents a front elevation of a stamping and punching machine embodying my invention. Fig. 2 represents a side elevation of one side of the same. Fig. 3 represents a side elevation of the opposite side of the same machine. Fig. 4 represents a rear elevation of the same machine. Fig. 5 represents a detail of the driving clutch mechanism controlling the punching mechanism, certain parts being shown in section. Fig. 6 represents a sectional detail on line wa: Fig. 5. Fig. 7 represents a plan of the machine bed and its shifting mechanism. Fig. 8 represents a portion of a strip of material illustrating the staggered relation of the rows of punchings. Fig. 9 represents a portion of a I strip of material illustrating the function of the trimmers or cutters. Fig. 10 represents a plan of a portion of the machine showing the step by step mechanism and feed controlling clutch. Figs. 11 and 12 represent details of the collars used in connection with the step by step mechanism. Fig. 13 represents a side elevation of one of the stop members forming an adjunct of the step by step mechanism. Fig. 1 1 represents a section on line yy Fig. 38. Fig. 15 represents a section on line ze Fig. 33 of the feed controlling clutch. Fig. 16 represents a section on line aa Fig. 26. Fig. 17 rep resents a detail of a portion of the step by step mechanism showing the control block engaging a stop finger in which position a punching operation takes place. Fig. 18 represents a view of the same in engagement with the cam whichcauses the control block to be locked out of operative position. Fig. 19 represents a portion of the mechanism shown in Fig. 17 with the stop'finger in pomain drive clutch trip mechanism. Fig. 23 represents a detail in plan of the cam roller and its shifting means, the said parts form ing a portion of the clutch mechanism for operating a punching tool.- Fig. 24 represents a section on line BB Fig. 10. Fig. 25 represents a side elevation, partly in section, of the material carrier supporting mechanism showing the means for feeding the same and also the trip mechanism for operating the stamping clutch. Fig. 26 represents a detail in elevation of the control block of the step by step mechanism and its adjuncts. Figs. 27 and 28 represent similar views showing the control block in different positions. Fig. 29 represents a detail of the control block resetting mechanism in one position: Fig. 30 represents the same engaged by the resetting finger of the material carrier. Fig. 31 represents a section on line c0 Fig. 26. Fig. 32 represents a plan of the control block resetting mechanism and its cooperating adjuncts. Fig. 33 represents an elevation of the feed controlling clutch mechanism. Fig. 34 represents a plan of the clutch operating lever and its adjuncts. Fig. 35 represents a detail of the trip locking mechanism controlling the clutch operating lever. Fig. 36 represents in elevation the tripping mechanism controlling the clutch operating lever. 37 and 38 represent details of a portion of the arm carrying the clutch cam roller and showing in section the trip members holding the same in different positions. Fig. 39 represents a detail of the same. Fig. 40 represents a side elevation of the chain of gears for operating the feed clutch mechanism. Fig. 41 represents an elevation of the same showing a portion of the cutter mechanism. Fig. 42 represents a plan of the same gearing showing the connection to the main drive shaft. Figs. 43, 44 and 45 represent the material in various stages of op eration. Fig. 46 represents a detail of the mechanism for driving the trimmers or cutters. Fig. 47 represents an end elevation of the trimmers or cutters the same being broken away to show the driving gear. Fig. 48 represents a side elevation of the same.

Similar numerals of reference indicate corresponding parts in the figures.

1 designates the frame of a stamping or punching machine, the same being of suitvided with a cam 4 adapted to engage a cam Figs.

roller 5 for causing operation of a suitable clutch mechanism for operating the stamping or punching tool. This clutch mechanism consists of a disk member 6 fixedly secured to the pulley 3 and positioned opposite a second disk member 7 suitably keyed or otherwise secured to the shaft 2, these two disks being held in normal position by means of a spring 8 or the like. Secured to the disk 7 is a movable lug 9 normally held out of engagement with the disk 6 by means of a plunger 10 having a cam faced end 11 cooperating with the lug 9 and maintainin it in the position shown in Fig. 5. Remova of the plunger 10 from engagement with the lug 9 causes the latter to spring into engagement with the clutch face 6 and thereby impart movement to the disk 7 and shaft 2, which latter, as will be apparent, drives the crank 12, carrying the cross-head 13, to which the holder 14 of the stamping tool is connected. The plunger 10 is slidingly mounted in the frame 1 and is actuated in one direction by a spring 15 which has a tendency to hold the same normally in the path of the lug 9 to prevent movement being transmitted to the shaft 2 at certain times and the plunger is withdrawn intermittently through the medium of the cam roller 5. This cam roller 5 is keyed to and slidingly mounted on a spindle 16 attached to the plunger 10 and is also provided with .the cam and cause the actuation of the punching mechanism.

21 designates a suitable bed, preferably adjustably mounted by means of bolts 22 and slots 23 on the bracket arms 24, which latter are suitably pivoted at 25 to the frame 1 of the machine whereby the bed 21 and its adjuncts may be swung away from the machine in order to permit access to the punch and adjacent parts for whatever purpose may be desired. This swinging movement is accomplished, in the present instance, by means of threaded rods 26 suitably secured to the arms 24 and adapted to be actuated by means of a gear system 27 and 28 preferably operativeby the hand wheel 29, as will be apparent.

30 designates an arm secured to one of the bracket arms 24 and extending outwardly from the frame 1 to serve as a support for the rod 31 and also as a bearing for the threaded feed spindle 32, while a second support for these members is provided in the arm 33 which is preferably formed integral with an extension 34 secured to one of the bracket arms 24. The threaded spindle 32 serves as a feed screw for moving the carrier frame of the material relative to the punching mechanism and is an accurate and positive means for performing the desired function.

34 designates a sleeve preferably slotted throughout its length within which the threaded spindle 32is located and upon which the material carrying frame is mounted for sliding movement, it being understood that the sleeve 34 does not rotate but is fixed relative to the threaded spindle 32. The carrier frame comprises a sleeve 35 secured by a spline or key 35 for sliding movement thereon and by means of which the two sleeves 34 and 35 may be turned relative to the threaded spindle 32 at certain times to shift the material carrier toward and away from the punching mechanism.

36 designates a hanger preferably tubular fixedly secured to and adjacent each end of the sleeve 35 and having a plunger 37 slidingly mounted therein and normally outwardly pressed through the medium of a spring 37*. These plungers 37 are adapted to carry the punching material by means .of a clamping device comprising a plate 38 preferably resting on the bed 21 and having apertured ears 39 in which a rod 40 is secured to attach the same to the plungers 37. Coacting with the plate 38 are a plurality of gripping members comprising jaws 41 carried by the rod 40 and adapted to be shifted by the lever 42 into engagement with the material 43. In this position the thumb screw clamping means 44 is brought into operation to securely grip and retain the material firmly in position on the carrier frame. It will thus be apparent that the sleeve 35, the hangers 36, plungers 37 and plate 28 with its gripping devices form a carrier frame which has free sliding movement longitudinally of the slotted sleeve 34*. The longitudinal movement of this carrier frame causes the material to assume different positions relative to the punching mechanism and in order that this movement may properly position the material for successive punching operations, I preferably provide a step by step mechanism which accurately determines the relation between the parts. This step by step mechanism consists, in the present instance, of a plurality of collars 45 mounted upon the sleeve 35 at suitable intervals apart and, in the present instance, these collars are split and pro vided with a' bolt 46 or like fastening means by which they are securely locked in position. As here shown, the collars 45 are each provided with oppositely inclined faces 47 and 48 between which a slot 49 is formed to accommodate a stop finger 50 and the function of the inclined faces is substantially that of a cam which causes a suitable cooperating member, presently to be described, to be actuated and operate its adjuncts. It will be understood that there is one stop finger 50 for each collar and these fingers are all mounted upon a spindle 51 mounted for reciprocating movement in a suitable portion of the carrier frame.

The feeding movement of the carrier frame and its adjuncts, the collars 45 and fingers 50, is effected, in the present instance, by means of a leader-nut 52 positioned with in the slot of the sleeve 34 and in engagementwith the threaded spindle 32. This leader-nut 52 has a link 53 secured thereto slidingly mounted in the bearing 54 and connected to a bell crank lever 55 which is normally held by a spring 56 to cause the leader-nut 52 to engage the threaded feedspindle 32. In order to release the leadernut 52 a link 57 is secured at one end to the bell-crank 55 and at its opposite end to a hand-lever 58 and in which position the parts may be locked by means of a spring catch 59, as will be apparent.

In the operation of the machine the leader-nut 52 is thrown into engagement with the threaded feed-spindle 32 and the carrier frame thus moves longitudinally the distance required to punch the width of the material or so much of the same as may be desired, and of course it will be seen that some means must be provided to release the feeding mechanism from the carrier frame during the interval of time that a punching operation is taking place. For this purpose I preferably provide a friction drive for actuating the threaded spindle 32, consisting of a pair of friction cones 60 and 61, the former being rotatably secured to a drive shaft 62 while the latter is loosely mounted on said shaft 62 and held in frictional engagement with the cone 60 by means of a spring 63, the tension of which may be regulated by the adjusting nuts 64. The cone 61 has secured thereto a sprocket 65 which drives, through the medium of a chain 66, a second sprocket 67 keyed to the threaded spindle 32. It will thus be apparent that if. the carrier frame is held against movement the friction between the two cones will be overcome and the feeding operation cease during this interval but will immediately resume as soon as the carrier frame 1s re leased.

In order to efiect the stopping of the carrier frame at the desired intervals, I preferably provide a controlling block 68 having, in the present instance, a curved face 69 conforming substantially to the contour of the collars 45 with respect to which it is located in the path of movement thereof. This controlling block 68 is slidingly mount- 

